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Issue: Vol. 474 No. 1: 27 November 2020
Type: Article
Published: 2020-11-27
DOI: 10.11646/phytotaxa.474.1.8
Page range: 81–86
Abstract views: 29
PDF downloaded: 1

A new tuberous species of Begonia L. (Begoniaceae) from southern Yunnan, China

Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences & Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, P.R. China. Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Menglun, Mengla,Yunnan 666303, P.R. China.
Yunnan Institute of Tropical Crops, Jinghong, Yunnan 666100, P.R. China.
Forest and Grassland Bureaus of Ning’er, Puer, Yunnan 665100, P.R. China.
Key Laboratory on Biosafety of Environmental Protection, Nanjing Institute of Environmental Science, Ministry of Ecology and Environment, Nanjing 210042, China.
Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences & Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, P.R. China. Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Menglun, Mengla,Yunnan 666303, P.R. China.
Begonia sect. Pterdiformis tuberous herb pinnate venation Eudicots

Abstract

A new species, Begonia depingiana from southern Yunnan, China, is described and illustrated. Morphologically, B. depingiana is similar to B. namkadingensis in habit, its tuberous rootstock and tepal number of the male and female flowers, but significantly differs by its 3 stigmas, and 3-locular ovary. It also resembles B. pellionioides in its pinnate leaf venation, but distinguished by the indumentum characters of its stem and ovary, tuberous rootstock, shorter plant, and unequally 3-winged capsule.